As an odd note, modern glow sticks, and all other objects that use that fluid are the result of alchemy. A modern alchemest was trying to do the old, turn lead into gold idea. After several failed experiments, as he was closing his lab, he noticed one of the substances was acting as a light source, once the light source was removed.

The idea was marketed. Thus we have glow sticks, glow in the dark paint, hair dye, ect ect.